Home » Jeep Exhaust » Cat-Back Systems » Flowmaster Exhaust American Thunder Stainless Steel Cat Back Exhaust for 07-16 Jeep® Wrangler and Wrangler Unlimited JK

Flowmaster American Thunder Stainless Steel Cat Back Exhaust for 07-17 Jeep® Wrangler and Wrangler Unlimited JK

The Quadratec® Difference
Catalog #: 17618.0004
Flowmaster Part #: 817674
Flowmasters new American Thunder cat-back system for the 2007-2015 Jeep Wranglers is perfect for the person looking for maximum performance and ground clearance from their exhaust system. This 2.50 system features a 409S stainless steel mandrel bent tailpipe with a 3.00 polished stainless steel tip and fits both 2 and 4 door models with the 3.6L and 3.8L V6 engines. This system replaces the factory transverse muffler and relocates the Super HP-2 muffler behind the factory catalytic converter, providing a moderate to aggressive sound level. This relocation allows for better ground clearance when driving off-road. Because the tailpipe is tucked up so high, an aftermarket metal bumper is recommended. The exhaust system is manufactured in the USA and is covered by Flowmaster's Lifetime Limited Warranty. Designed for an easy fit, this system includes all necessary parts and hardware for installation


  • 2.50" Mandrel Bent Tubing
  • 409S Stainless Steel Construction
  • Provides Maximum Off Road Clearance
  • Patented Laminar Flow Technology
  • Lifetime Limited Warranty
Installation Notes
Installation Difficulty:
Level 2Intermediate
Parts Included

Cat Back Exhaust System

  • Type: Stainless
  • Jeep Wrangler 2-Door (JK)

  • 2017 Jeep Wrangler 2-Door (JK)
  • 2016 Jeep Wrangler 2-Door (JK)
  • 2015 Jeep Wrangler 2-Door (JK)
  • 2014 Jeep Wrangler 2-Door (JK)
  • 2013 Jeep Wrangler 2-Door (JK)
  • 2012 Jeep Wrangler 2-Door (JK)
  • 2011 Jeep Wrangler 2-Door (JK)
  • 2010 Jeep Wrangler 2-Door (JK)
  • 2009 Jeep Wrangler 2-Door (JK)
  • 2008 Jeep Wrangler 2-Door (JK)
  • 2007 Jeep Wrangler 2-Door (JK)
  • Jeep Wrangler Unlimited 4-Door (JK)

  • 2017 Jeep Wrangler Unlimited 4-Door (JK)
  • 2016 Jeep Wrangler Unlimited 4-Door (JK)
  • 2015 Jeep Wrangler Unlimited 4-Door (JK)
  • 2014 Jeep Wrangler Unlimited 4-Door (JK)
  • 2013 Jeep Wrangler Unlimited 4-Door (JK)
  • 2012 Jeep Wrangler Unlimited 4-Door (JK)
  • 2011 Jeep Wrangler Unlimited 4-Door (JK)
  • 2010 Jeep Wrangler Unlimited 4-Door (JK)
  • 2009 Jeep Wrangler Unlimited 4-Door (JK)
  • 2008 Jeep Wrangler Unlimited 4-Door (JK)
  • 2007 Jeep Wrangler Unlimited 4-Door (JK)
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